The spelling of the word "tabouring" can be confusing for many people as it does not follow the usual spelling rules in English. The correct pronunciation of this word is /təˈbɔːrɪŋ/, which is why it is spelled with a "u" after the "o". The word originates from the French word "tabour", meaning ‘drum’. To further complicate matters, this word is more commonly spelled as "taboring" in modern English. As such, it is important to double-check the correct spelling before using it in any formal writing.